Brother PE770 Service Manual page 36

Main unit
1
Thread tension assy removal
1. Remove the spring
S04
2. Remove the 2 screws 1, and remove the thread tension assy 1.
2
Upper thread PCB unit removal
1. Remove the screw 1, and then remove the upper thread PCB unit 1.
3
Upper thread PCB unit disassembly
1. Remove the screw 1, and then remove the upper thread PCB assembly 1
from the thread sensor holder 2.
Thread tension mechanism
.
S04
1
1
1
1
1 2
1
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